The woman told the Pharmasave that she had a Kingston patient who'd forgotten to fill her fentanyl prescription before leaving Kanata, and wanted to make sure that the Pharmasave had enough of the powerful painkiller in stock, police said.

Kingston police say the woman claimed to be a cancer patient and presented a doctored prescription for fentanyl at a Gardiners Road Pharmasave on Feb. 29. (Kingston Police)

Two hours later, a woman showed up at the Pharmasave claiming she was in Kingston receiving cancer treatment, said police.

She presented the health card of a 27-year-old woman, police said, and told the pharmacist she'd forgotten to fill her prescription before leaving Kanata.

The woman presented a prescription for fentanyl patches, which the pharmacy filled, police said.

Kingston police said Friday that they suspect the two women are the same person and that the prescription was forged.

No prescriptions issued

The day after the alleged impersonation attempt, the Pharmasave contacted the Kanata physician listed on the prescription.

The physician confirmed that the woman was not a patient and that there had been no recent prescriptions issued for fentanyl, police said.

Anyone with information on the suspect can contact Det. Brad Hughes of the Kingston police at 613-549-4660 ext. 6286 or via email at bhughes@kpf.ca.